> It's a reference to River City Ransom, probably the
> single best "let's beat the shit out of everybody
> and steal their lunch money" game ever to come out
> of the NES years. See, the joke is that enemies,
> when they died, had a tendency to shout, "BARF!"
> before dying, as Red VIII says in the line preceding
> this.
It's also a backhanded reference to River City High, one of the better sprite comics out there. Which says a lot when you think about it.